Step-daughter of Robert Louis Stevenson -- and she offers a wealth of trivia about him which, however, throws little light on the man or his work. In fact her autobiography seems itself a collection of trivia -- chit-chat about herself, her family, the people she knew, the places she went, told in sentimental, amateur vein. Since her life held little of general interest or value, why write it? And yet, for its very simplicity and lack of important incident, it may prove of definite interest to a conservative group of women, seeking human interest material reflecting things in familiar key. Try for that market.